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The number of suits sold per day at a retail store is shown inthe table, with the corresponding probabilities. Find themean, variance, and standard deviation of the distribution.
Numer of suitssoldX 19 20 21 22 23Probability 0.2 0.2 0.3 0.2 0.1
If the manager of the retail store wants to be sure that hehas enough suits for the next 5 days, how many should the manager purchase?
Find the equation of a line perpendicular to the line: x = 4 ,and passing through the point: (4,2). Draw a graph of the following linear function and give the domain and range:
Probability Sampling Without Replacement Card Hands. A hand of 4 cards contains one card of each suit
The perimeter of a rectangular lot is 56 meters. The length exceeds the width by 12 meters. Find the length of the lot.
which is kept uniform, is pumped out at the rate of 2 gal/min. What is the concentration of salt in the container at the instant of overflow?
How far is the sailboat from the lighthouse, to the nearest kilometer? (50 kilometers going up and down and 130 kilometers going side to side)
write an equation that represents the number of miles on the odometer, y, using x, gallons of gas
Assume Jim had executed 15 "Splits" before his last split of 20 seconds. If his eventual time in the road race is 4:05 , what was the average time for one of his earlier splits?
use a combinatorial proof to show the summation of k=0 to the P elements- (n/p) (m/[p-k])=([n+m]/p)
What is the answer to the range of f(x) = ax + b is the set of all real numbers given that a and b are real numbers and which produces a counter example to her statement
Suppose that in a company with 775 employees, the monthly salaries are normally distributed. The mean salary is $6400 and the standard deviation is $800. About how many employees earn more than $4200 per month?
Explain the difference in the standard error for the two samples.
Calculate the operating cost and probability values
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